Rhode Island Tercentenary Issue First Day Cover
300th Anniversary of the Settlement of Rhode Island
Issued on May 4, 1936 in Providence, RI - Scott #777

Unofficial Town Cancel - Forestdale, Rhode Island
John B. Kilton Cachet - Planty #777-61L

The Post Office at Forestdale, (North Smithfield Township, Providence County) was established on July 31, 1890 under Postmaster Ernest A. Mowry. This post office is currently in operation. The Postmaster is listed in "Rhode Island Postal History: The Post Offices" as Ernst A. Mowry. This is in error as he is listed in the 1890-93 Woonsocket directory as Ernest A. Mowry and his occupation is given as grocer and postmaster. He is listed as living on Millville Road. 

Sources:
Check List of Rhode Island Post Offices 1790-1994 - Del Beaudreau
Rhode Island Postal History: The Post Offices - Merolla, Jackson & Crowther